Rotary-plug lock.



L. SCHNEIDER & E. E. I. DUQUETTE. ROTARY PLUG Lock.v

- APPLICATION FILED MAY26- I9I6.

Patented Apr. 17, 1917.

"u a@ L m i LOUIS SCHNEIDER AND EDWARD E, J. DUQUETTE, OF ATLANTA, GEORG-IA'.

ROTARY-PLUG LOCK.

Specication of Letters Patent.

Patented Apr.. 17, 1917.

Application filed May 26, 1916. Serial No. 100,137. Y

To all whom t mag/concern:

Be it known that we, Louis SCHNEIDER and EDWARD E. J. DUQUETTE, citizens of the United States, residing at Atlanta, in the county of Fulton and State of Georgia, have .invented certain new and useful Improvements 'in Rotary-Plug Locks; and we do hereby declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention may be said to relate to cocks and faucets, and more especially to turning plugs; and when it is so used its object is to provide a lock for fastening the plug of a valve or bib after said plug has been turned to the desired position. The invention should not, however, be limited to this specific use, as the lock may be applied to any turning member to hold it in any of a variety of positions to which it may be set; and it will be obvious without further illustration thatrit might be used to lock a plug or similar member whose vadjustment was longitudinal instead of rotary.y The invention aims to provide a neat but serviceable lock of this character, actuated almost automatically by the user when` he grasps the handle of the plug, and almost or en tirelyv lreference is made to the accompanying drawings where* l Figure l is a vertical section through most of the valve, showing the lock and its operating mechanism in full, Fig. 2 is an enlarged detail of the locking bolt and the rock lever for sliding it, Fig. 3 is a horizontal section on the line 3-3 of Fig. 1, and Fig. 4 is a similar sectional vdetail showing a slight modification. v Y

Broadly speaking, this invention provides means for locking a male memberM which is rotatable within a female'member F, but as shown in the drawings these members constitute respectively the plug and the casing of a bib, or valve, whose openings are indicated in dotted lines at m and f. S is the stem of the plug, and H is its handle. As suggested above, the invention is not confined to this use nor the' parts to the shape shown, and it is quite obvious that they could be made inavariety of shapes.

Coming now to the details of the present invention, the numeral l designates a bolt slidably mounted in a guide 2 which is herein shown as a hole passing transversely through the stem S, or part way through it as indicated in Fig. 4.

The female member F is herein shown as a valve casing having an upstanding collar 3 provided at one side with a cut-out or channel t extending through an arc of 90 degrees, and internally bored with sockets 5 and 6 respectively opposite the extremities of said channel so as to receive the tip of the bolt l, while the other end of the bolt travels in the channel and limits the turning of the member M. In the modification shown in Fig. i the guide is not solong and the bolt doesv not extend completely through the plug, and therefore no channel A is necessary; and it is quite obvious that a number of sockets or notches 7 could be provided for the tip of the bolt, and the latter could be reduced or pointed as sho-wn.v When the invention is applied to a bib or faucet and the portsmand 7 stand in alinement as seen in dotted lines in Fig. 1, the bib is open and the tip of the bolt stands in the socket 6. When now the boltv is retracted so that its tip is disengaged from said socket, the plug can be turned for a quarter revolution while the other end of the bolt travelsl in the channel 4:, and then after'the bib is closed the tip ofthe bolt can be projected into the socket 5 to lock the bib in that position.

The mechanism for mo-ving the bolt is designed to be concealed from View and yprotectedv from dust and dirt. To this end the stem S of the plug M is made hollow and in its bore 10 is mounted a rock lever 11 pivoted between its ends as at 12, its tip engaging a notch'or other opening in the bolt 1 as bestseen in Fig. 2. Pivo-tally connected at 13 to its other and here its upper end is a link 14 moving freely within an' opening l5 extending from the bore 10 lathead of the stem, and an expansive spring 25 is coiled on this screw within the cavity 21 between the shoulder 22 and a washer 27 which underlies tl head or' the screw, Finally the errule is provided with an eye as indicated at 26, into which the` link ll extends so that its hook 16 is engaged with the eye.

The parts being assembled as best seen in Fig. l, when it is desired to turn the plug the operator grasps the handle H and moves it slightly to the right as the compression or" the spring 25 will permit. the errule 23 away from the head of the stem, and through the hook i6 the link is caused to move with it and the rock lever ll is caused to swing to the position shown in dotted lines in Fig. 2. rThe tip ot this lever engaging the notch 12 in the bolt, retracts the latter so that it disengages the socket 6, and then when the operator swings the handie irl to turn the stem S and member M, the opposite end ot the bolt moves in the channel l until tie valve plughas turned through a quarter rotation when the oper-y ator releases the handle the spring restores the parts to their normal position and the tip of the plug enters the notch 5. lt is obvious that the same operation would take place it' the bolt were shorter and the channel it omitted as seen in Fig. 4l, and it is also obvious that the plug could be adjusted to a number of positions it the sockets were quite plentiful as indicated at 7 in this view. It will also be obvious that the invention could be applied to turning members other than valve plugs, and also possibly to members whose movement was not rotary, as, for instance, to members which moved longitudinally. The gist of the invention lies in the tact that when the operator grasps thehandle to set the member M, he can almost without conscious e'ort move the handle a little to retract the bolt l and unlock such member betere he sets it; and provision is made for the automatic locking of the bolt when he releases the handle.

For the purpose of preventing` a slight rotation ot the handle which might draw on the link undesirably, it may be provided at its inner end with a pin 30 which slides in and out of a hole 3l in the stem S of the plug. We do not wish to be limited to this detail, however, as any means may be provided for effecting this end.

What is claimed as new is:

l. The combination with a female member having a series of sockets, a male member movably mounted in the female member and having a guide in the line of said series, and a bolt slidably mounted in the guide and adapted to be projected into any of said sockets according to the relative position of the members; of a handle movably attached to the male member for adjusting its posi- This moves V tion in the female member, and connections between the handle and bolt whereby the movement of the handle with respect to the male member actuates the bolt.

2. The combination with a casing having the guide, a rock lever pivoted to the stem A of the plug and havingone end engaging the bolt, a handle movably mounted on the head of said stem, and connections between the handle and the other end ot the lever.

3. A turning plug and a casing, the former having a hollow stem provided with a guide intersecting its bore, and the casing having a plurality of sockets in the plane of said guide; combined with a bolt slidably mounted in said guide, a rock lever disposed within said bore and pivoted between its ends and its lower endengaging said bolt, the outer end of said stem having a lateral opening communicating with its bore, a pin projecting laterally from this end of the stem, a handle slidably mounted on said pin, and a link pivoted to the outer end ot the rock lever, extending through said bore, and engaging the handle.

e. A casing, and a rotary hollow member therein provided with a guide intersecting its bore, the casing having a plurality of sockets in the plane ot said guide; combined with a bolt slidably mounted in said guide, a rock lever disposed within said bore and pivoted between its ends with its lower end engaging said bolt, the outer end of said member having a lateral opening communicatingwith its bore, a pin projecting laterally from this end of the member. a handle slidably mounted on said pin, a errule surrounding the inner end of the handle and having an eye, and a link pivoted to the outer end of the rock lever7 extending through said lateral opening, and having a hook engaging theeye in the errule.

5. A valve comprising a turning plug and a casing, the former having a hollow stem provided with a guide intersecting its bore, and the casing having a plurality of sockets in the plane of said guide; combined with a bolt slidably mounted in said guide, a rock lever in said bore with its lower end engaging said bolt, the outer end of said stem having a lateral opening communicating with its bore, a screw projecting laterally from this end and having an expansive spring beneath its head, a hollow handle slidably mounted on said screw and having a cavity inclosing the'spring and against whose inner end said spring bears, and a link pivoted to the outer end of the rock lever, extending through the opening, and engaging the handle.

6. A valve comprising a turning plug and a casing, the former having a hollow stem provided with a guide, and the casinghaving an arcuate channel in one side and opposite thereto a plurality of sockets in the plane of said guide; combined with a bolt slidably mounted in said guide, a rock lever disposed within said bore and with its lower end ening, and having a hook engaging the eye in the ferrule.

7. A valve comprising a turning plug and a casing, the former having a hollow stem provided with a transverse guide intersecting its bore, and the casing havinga plurality of sockets in the plane of said guide; combined with a bolt slidably mounted in said guide and having a notch alined with the bore, a rock lever disposed within said bore and pivoted between its ends, its lower end engaging the notch in said bolt, the outer end of said stem having a lateral opening communiciating with its bore, a screw projecting laterally from this end and having an expansive spring beneath its head, a hollow handle slidably mounted on said screw and having a cavity inclosing Copies of this patent may be vobtained for the spring and against whose inner end said spring bears, and a link pivoted to the outer end of the rock lever, extending through the opening, and engaging the handle.

8. A valve comprising a turning plug and a casing, the former having a hollow stem provided with a transverse guide intersecting its bore, and the casing having an arcuate channel in one side and opposite thereto a plurality of sockets in the plane of said guide; combined with a bolt slidably mounted in said guide and having a notch alined with the bore, a rock lever disposed within said bore and pivoted between its ends, its lower end engaging the notch in said bolt, the outer end of said stem having a lateral opening communicating with its bore, a screw projecting laterally from this end and having an expansive spring beneath its head, a hollow handle slidably mounted on said screw and having a cavity inclosing the spring and against whose inner endV said spring bears, a ferrule surrounding the inner end of the handle and having an eye, and a link pivoted to the outer end of the rock lever, extending through the opening, and having a hook engaging the eye in the errule.

ln testimony whereof we aliX our signaturesin presence of two witnesses.

LOUIS SCHNEIDER. EDWARD E. J. DUQUETTE..

ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

